‘Kelti’ (‘The Celts’) is a group of fans of the football club Bilogorac from the village Veliko Trojstvo. They are the only organized fan group in the First County Football League, and their other specificity is that their members are not residents of this village but of Bjelovar, a city situated 10 kilometres away from the village. Although Bjelovar has a football club which is in the higher rank of competition, these football enthusiasts give their sympathy to Bilogorac. The film takes place during one season and tells the stories of five prominent fans: Gogolj, Skols, Bubi, Čale and Matak. It turns out that the season which the film followed was a historical one for the club and the Celts, because they made it to the finals of the County cup, on which they played against Bjelovar at their home terrain.